| 0. 0 | 28.83 | ||
| 32.35 | (3.52) | 59.87 | (27.52) |
| 1:08.54 | (8.67) | 1:31.26 | (22.72) |
| 1:45.71 | (14.45) | 2:02.86 | (17.15) |
| 2:23.44 | (20.58) | 2:34.53 | (11.09) |
| 3:01.33 | (26.80) | 3:06.02 | (4.69) |
| 0. 0 | 3:37.98 | ||
| 3:39.46 | (1.48) | 4:09.49 | (30.03) |
| 4:16.76 | (7.27) | 4:41.30 | (24.54) |
| 4:54.48 | (13.18) | 5:12.56 | (18.08) |